tracefile.cc revision 13256:c1de139c72e5 
1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution;
11 * neither the name of the copyright holders nor the names of its
12 * contributors may be used to endorse or promote products derived from
13 * this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include "systemc/utils/tracefile.hh"
31
32#include <ctime>
33#include <iomanip>
34
35#include "base/logging.hh"
36#include "base/output.hh"
37#include "sim/core.hh"
38#include "systemc/core/time.hh"
39#include "systemc/ext/core/sc_main.hh"
40#include "systemc/ext/core/sc_time.hh"
41#include "systemc/ext/utils/functions.hh"
42
43namespace sc_gem5
44{
45
46TraceFile::TraceFile(const std::string &name) :
47    _os(simout.create(name, true, true)), timeUnitTicks(0),
48    timeUnitValue(0.0), timeUnitUnit(::sc_core::SC_PS), _traceDeltas(false)
49{}
50
51TraceFile::~TraceFile()
52{
53    simout.close(_os);
54}
55
56std::ostream &TraceFile::stream() { return *_os->stream(); }
57
58void
59TraceFile::set_time_unit(double d, ::sc_core::sc_time_unit tu)
60{
61    timeUnitValue = d;
62    timeUnitUnit = tu;
63
64    double secs = d * TimeUnitScale[tu];
65    for (tu = ::sc_core::SC_SEC; tu > ::sc_core::SC_FS;
66            tu = (::sc_core::sc_time_unit)(tu - 1)) {
67        if (TimeUnitScale[tu] <= secs)
68            break;
69    }
70
71    uint64_t i = static_cast<uint64_t>(secs / TimeUnitScale[tu]);
72    std::ostringstream ss;
73    ss << i << " " << TimeUnitNames[tu] << " (" << _os->name() << ")";
74    SC_REPORT_INFO("(I703) tracing timescale unit set", ss.str().c_str());
75}
76
77void
78TraceFile::finalizeTime()
79{
80    ::sc_core::sc_time time;
81    if (timeUnitValue == 0.0) {
82        // The time scale was never set. Use the global time resolution.
83        time = ::sc_core::sc_get_time_resolution();
84    } else {
85        time = ::sc_core::sc_time(timeUnitValue, timeUnitUnit);
86    }
87    timeUnitTicks = time.value();
88}
89
90} // namespace sc_gem5
91